A much-thickened variety of Bulimus bivaricosus, Gaskoin, from Lord Howe Island
Abstract
In the general Zoology of Lord Howe Island, l applied the varietal name solida to a peculiar form of Bulimus bivaricosus, Gaskoin, one of the most characteristic species in the land molluscan fauna of the island in question. In the living state, there are already known two well marked varieties Bulimus cuniculinsulae, Cox, and B. etheridgei, Brazier, the former being less in size, the latter with a much thinner shell than the species in chief.